OmniVib

Abstract

Previous research has shown that one's palm can reliably recognize 10 or more spatiotemporal vibrotactile patterns. However, recognition of the same patterns on other body parts is unknown. In this paper, we investigate how users perceive spatiotemporal vibrotactile patterns on the arm, palm, thigh, and waist. Results of the first two experiments indicate that precise recognition of either position or orientation is difficult across multiple body parts. Nonetheless, users were able to distinguish whether two vibration pulses were from the same location when played in quick succession. Based on this finding, we designed eight spatiotemporal vibrotactile patterns and evaluated them in two additional experiments. The results demonstrate that these patterns can be reliably recognized (>80%) across the four tested body parts, both in the lab and in a more realistic context.

Subtletee: Augmenting Posture Awareness for Beginner Golfers

“…We determined the location of the vibrotactile feedback for weight imbalance in the pre-study. The motors which provided feedback for elbow bend were provided directly on the elbow, as suggested by prior research by Alvina et al [2]. We chose a pulse duration of 600 , which was suggested by Carcedo et al [14].…”

“…This paper contributes (1) a research prototype of Subtletee, which assists beginner golfers at the driving range; (2) an empirical evaluation of the system showing that real-time feedback can lead to performance improvement in golf swings; and (3) insights into the modality and location of feedback for supporting complex movements in a wider range of physical activity scenarios. The novelty of our research lies in the exploration of the feedback modalities for posture awareness in HCI for sports.…”

VibHand: On-Hand Vibrotactile Interface Enhancing Non-Visual Exploration of Digital Graphics

“…3.2.2 Numbers of vibrators. With the aim of representing eight cardinal directions, we may have used eight vibrators [3]. But due to limited space on the back of the hand and restriction of minimum inter-vibrator distance (for generating identifiable vibrations), we had to reduce the number of vibrators to four, and then use spatiotemporal vibrotactile patterns (SVP) [11] to increase the number of direction cues to eight (see Fig.…”

Vibrotactile cues for conveying directional information during blind exploration of digital graphics

“…SVP repose sur des ensembles de vibrations séquentielles ou simultanées appliquées sur différents vibreurs et a souvent été utilisé pour donner des notifications [3]. La Figure 1 montre deux types de SVP : séquentiel et simultané.…”